योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-111, verse-42

असंकल्पनमात्रैकसाध्ये सकलसिद्धिदे ।
असंकल्पनसाम्राज्ये तिष्ठावष्टब्धतत्पदः ॥ ४२ ॥

asaṃkalpanamātraikasādhye sakalasiddhide ,
asaṃkalpanasāmrājye tiṣṭhāvaṣṭabdhatatpadaḥ 42

42. asaṃkalpamātraikasādhye sakalasiddhide
asaṃkalpanasāmrājye tiṣṭha avaṣṭabdhatatpadaḥ

42. asaṃkalpamātraikasādhye sakalasiddhide
asaṃkalpanasāmrājye tiṣṭha avaṣṭabdhatatpadaḥ

42. Remain steadfast in the sovereignty of non-desire (asaṅkalpana), which is attained solely through the mere absence of desire and bestows all perfections. Be one whose true nature is firmly established.

Words meanings summery:

• असंकल्पमात्रैकसाध्ये (asaṁkalpamātraikasādhye) - achievable solely by mere non-resolve/non-desire

• सकलसिद्धिदे (sakalasiddhide) - bestowing all perfections/accomplishments

• असंकल्पनसाम्राज्ये (asaṁkalpanasāmrājye) - in the empire of non-resolve/non-desire

• तिष्ठ (tiṣṭha) - remain, stand, abide

• अवष्टब्धतत्पदः (avaṣṭabdhatatpadaḥ) - one whose true state/goal is firmly grasped; one with an unmoving, established state

Words meanings and morphology

असंकल्पमात्रैकसाध्ये (asaṁkalpamātraikasādhye) - achievable solely by mere non-resolve/non-desire

(adjective)

Locative, neuter, singular of asaṃkalpamātraikasādhya

asaṁkalpamātraikasādhya - attainable by only mere non-resolve

Compound type : tatpuruṣa (asaṃkalpa+mātra+eka+sādhya)

• asaṃkalpa – absence of resolve/desire, non-conception
  noun (masculine)
  negation of saṃkalpa
  Prefix: a
• mātra – mere, only, measure
  indeclinable
• eka – one, single, sole
  numeral (masculine)
• sādhya – to be accomplished, achievable, practicable
  adjective (masculine)
  Gerundive (Passive Future Participle)
  from root sādh (to accomplish) + -ya suffix
  Root: sādh (class 5)

Note: Locative case, modifying asaṃkalpanasāmrājye.

सकलसिद्धिदे (sakalasiddhide) - bestowing all perfections/accomplishments

(adjective)

Locative, neuter, singular of sakalasiddhida

sakalasiddhida - giver of all accomplishments, bestowing all perfections

Compound type : tatpuruṣa (sakala+siddhi+da)

• sakala – all, whole, entire, complete
  adjective (masculine)
  from sa-kala (with parts)
  Prefix: sa
• siddhi – perfection, accomplishment, success, supernatural power
  noun (feminine)
  from root sidh (to accomplish)
  Root: sidh (class 4)
• da – giving, granting, bestowing
  adjective (masculine)
  from root dā (to give)
  Root: dā (class 3)

Note: Locative case, modifying asaṃkalpanasāmrājye.

असंकल्पनसाम्राज्ये (asaṁkalpanasāmrājye) - in the empire of non-resolve/non-desire

(noun)

Locative, neuter, singular of asaṃkalpanasāmrājya

asaṁkalpanasāmrājya - the sovereignty/empire of non-resolve

Compound type : tatpuruṣa (asaṃkalpana+sāmrājya)

• asaṃkalpana – absence of resolve/desire, non-conception
  noun (neuter)
  negation of saṃkalpana
  Prefix: a
• sāmrājya – empire, sovereignty, supreme rule
  noun (neuter)
  from samrāṭ (universal ruler) + -ya suffix

Note: Locative case, indicating location 'in the empire'.

तिष्ठ (tiṣṭha) - remain, stand, abide

(verb)

2nd person , singular, active, imperative (loṭ) of sthā

Root: sthā (class 1)

Note: 2nd person singular imperative active of root sthā

अवष्टब्धतत्पदः (avaṣṭabdhatatpadaḥ) - one whose true state/goal is firmly grasped; one with an unmoving, established state

(adjective)

Nominative, masculine, singular of avaṣṭabdhatatpada

avaṣṭabdhatatpada - one whose 'that state' (truth) is firmly supported/grasped; firmly established in the true state

Compound type : bahuvrīhi (avaṣṭabdha+tat+pada)

• avaṣṭabdha – firmly supported, grasped, unmoving, fixed
  adjective (masculine)
  Past Passive Participle
  from ava-stambh (to prop up, to stop, to fix)
  Prefix: ava
  Root: stambh (class 9)
• tat – that, supreme (referring to Brahman or ultimate reality)
  pronoun (neuter)
• pada – state, condition, foot, step, word, goal
  noun (neuter)

Note: Refers to the person addressed by the imperative verb tiṣṭha. Could also be interpreted as 'one whose foot is unmoving in that state'.